From 02120c45b07953ca4dfc19fa6ff90466efaf363f Mon Sep 17 00:00:00 2001 From: Bandan Das Date: Tue, 12 Jul 2016 18:18:52 -0400 Subject: [PATCH] kvm: vmx: advertise support for ept execute only MMU now knows about execute only mappings, so advertise the feature to L1 hypervisors Signed-off-by: Bandan Das Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index bd7d60f66b93..729e5f689097 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2794,6 +2794,9 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx) vmx->nested.nested_vmx_ept_caps = VMX_EPT_PAGE_WALK_4_BIT | VMX_EPTP_WB_BIT | VMX_EPT_2MB_PAGE_BIT | VMX_EPT_INVEPT_BIT; + if (cpu_has_vmx_ept_execute_only()) + vmx->nested.nested_vmx_ept_caps |= + VMX_EPT_EXECUTE_ONLY_BIT; vmx->nested.nested_vmx_ept_caps &= vmx_capability.ept; /* * For nested guests, we don't do anything specific -- 2.20.1